IONIC DISINFECTION BY-PRODUCTS - HOW TO ANALYZE

摘要

As a vital limited resource required for survival, water fit for human consumption is ideally produced from natural sources such as below ground aquifers and surface reservoirs. Because a clean water supply is the single most important determinant of public health, water from these ground and surface water sources must undergo a purification process to ensure that all undesirable chemicals, biological organisms, and suspended solids are removed. As part of the purification process, water is often treated with disinfectants such as chlorine, chlorine dioxide, chloramine, and ozone, which react with naturally occurring organic and inorganic matter in the source water to form amongst others anionic disinfectant by-products (DBPs), oxo halides and haloacetic acids that are potentially harmful to humans. The World Health Organisation (WHO) states that efficient disinfection must never be compromised in attempt to meet the guidelines for disinfection by-products and that the microbiological quality of the water must always take precedence.